Break ups

My boyfriend and I broke up. After 8 months and a pregnancy I’m 10 weeks today and I feel defeated. To be honest it was coming for a while we haven’t gotten along because we can’t agree on things and my insecurities don’t help. I may be crazy but I don’t like the idea of not knowing each other’s passwords and at first he was okay with that and than after a fight he changed his mind. Than started assuming he gets to make decisions and that I need help. I’ll admit that I probably do but so does he. He’s just as insecure as I am. Asking me to block certain guys that hit me up or flirt with me on Facebook. We’re adults and I know it sounds like childish behavior but I cant trust easily I really can’t even though I try. Every fight we get into he’s disrespectful he calls me names and tells me about hotter chicks. Goes on Facebook and hits them up or just adds a whole bunch of just females and I feel like he does it to get to me. I love this guy because when things are good they are really good. But as of yesterday we are really done. And I feel so lost. I’m pregnant and officially alone for the third time during a pregnancy. My two other children are not his. But I have no idea what to do.